Roll-holder for printing-presses.



w.- EVENSEN,

ROLL HOLDER FOR PRINTING PRESSBS.

APPLICATION FILED MAB. 9, 1908.

907,76Q. Patented Dec. 29, 1908.

2 SHEETS-SHEET 1.

W. EVENSEN.

ROLL HOLDER FOR PRINTING PRESSES.

APPLICATION FILED MAR. 9, 1908.

907,760. Patented Dec. 29, 1908.

2 SHEETS-SHEET z UNITED STATES PATENT OFFICE.

WILLIAM EVENSEN, OF OHlCAGO, ILLINOIS ASSIGNOR TO THEGOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOISQ Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed March 9, 1908. Serial No. 419,979.

To all whom it may concern:

Be it known that I, WILLIAM EVENSEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain newand useful Improvements in Roll-Holders for Printing- Pre-sses, of which the following is a specifica tion, reference being had to the accompanying drawings. I

My ini'ention relates to roll-holders for holding a roll or web ofpaper as commonly used in perfecting printing presses, and has for its object to proyide a new and improiied roll-holder of the general type illustrated and described in an application fled by Hans P. Husby March 29, 1907, Serial No. 365,305,

by which the roll may be quickly and firmly secured upon the shaft ormandrel by which it is supported while on the press; also to provide means by which the roll-holder may readily accommodate itself to rolls of different widths or to tubes of different diameters.

I accomplish these objects as illustrated in the drawings and as hereinafter described.

That which I regard as new is set forth in the claims.

In the drawings,Figure 1 is a partial sectional'iaiew on line 11 of Fig. 2,-illustrating One form of my impro ed roll-holder; Fig. 2 is an enlarged detail, being a cross-section on line 22 of Fig. 1 Fig. 3 is a partial sectional flew of the movable head which engages the -mandrel; Fig. 4 is a pers ectire iiew of the able head with the clamping, devices; and

Fig. 12 is a view, showing a corrugated head, such as is used with tubes made of paper.

As is well understood in theart, a web or roll of paper is usually wound upon a hollow tube or core, which in some casesis a metal cylinder and in other instances is a paper tube. In mounting the roll of a er on the press it is laced upon a man re which is supported y suita le supporting devices,

the tube or core of the roll of paper being secured to the mandrel by means of heads which fit into its ends and are themselves secured to the mandrel. The tension upon the web is regulated by applying friction in the form of brakes to the mandrel or shaft.

In the construction of the Husby application above referred to one of the heads is secured fixedly, by a set-screw or otherwise, to the mandrel, the other head being adjustable to accommodate rolls of different widths, and mechanism is provided for clamping the head in difi'erent'positions of adjustment and also for forcing the movable head toward the core which it is to engage.

My resent invention involves the same generaFfeatures of construction, but in addition includes certain improvements, notably a construction by which the rotation of the roll of paper automatically acts to operate clamping mechanism which en ages the mandrel and holds the movable lead against movement away from the core and also automatically adjusts the osition of the movable head so that it more rmly engages the core.

My invention also includes other features, which will be hereinafter pointed out.

It'will be understood that while it is designed principally for use in connection with printing-press rolls, it may be em loyed in any other situation where it is esired to connect a tube or core with a shaft on which it is mounted under conditions similar to those' which obtain in the use of rolls of paper in printing presses.

Referring to the drawings,-13 indicates the usual shaft or mandrel having journals 14-45 at its ends.-

16 indicates a tension-pulley of any suitable type, which is mounted on the mandrel at one end for controlling the tension on the web of paper.

Thepart-s of the press or other support for the mandrel are not shown as they orm no part of my present invention, and the construction of such devices is well understood.

16 indicates the tube or roll on which the web of paper or other material is wound.

Said tube is frequently a metal cylinder, but

sometimes is made of paper or other material. Its ends are internallybeveled for a purpose which will be hereinafter stated.

17 indicates a stationary head having a tapered sleeve 18 adapted to fit into the tube 16 and bear against the beveled portion thereof so as to fit tightly thereto. The

head 17 is provided with a set-screw 19,0r

other equivalent means, for holding it fixedly in position on the mandrel 13. 20 indicates a movable head, which is arranged to move longitudinally of the man-.

drel and is provided with a tapered sleeve 21 which fits in the opposite end of the tube 16 and engages the bevel thereof so as to form' a tight fit. Said head is also provided with a lug 22, as shown in Fig.3, which enters a notch 23 in-the end of the tube 16 so as to lock the tube and head together. The outer face of the head is in the form of a cam or spiral, as best shown at 24 Figs. 3 and 5,

and is arranged to be engaged by a lockinglever 25 carried bya collar 26 fitted upon the mandrel adjacent to the head 20- and rovided with means by which it, may be 100 ed securely to said mandrel. Such locking meansis best shown in'Figs; 1 and 2, from-- which it will be seen that said collaris provided with a locking-block 27 fitted in a suitable recess under the inner ortion of the.

lever 25, which is cam shape as shown at 28 in Fig. 6, and ismou'nte'dj-on a pivot '29 carried by the collar, as shown in Fig. 1'. The arrangement is such that when the outer end of the lever 25 is raised its cam portion 28 forces the locking-block 27 against the mandrel 13, binding it tightly in engagement therewith, thereby securely locking the collar 26 to the mandrel. The lockingblock 27 is held in position in the collar 26 by means of a screw 36 shown in Fig. 1. I

The operation of the form of apparatus thus far described is as follows: The station-- ary head 17 being secured on the mandrel in the proper position, the tube 16 is put in place and the removable head 20 fitted to it with the lug 22 in the notch 23. The lock- -ing-colla'r 26 is then placed u on the mandrel I close to the outer face of t e head 20, the outer end of the lever 25 being in engage-' ment with the lower ortion of the spiral 24,

as shown in Fig. 5. hen the roll of paper is rotated, as in unwinding, it rotates the head 20 to a greater or less extent upon the mandrel, thereby moving said head rela.

tively to the lever 25 which rides up on the spiral 24 and is therefore forced outward, causing it to press the lockingblock 27 more tightly against the mandrel andv conse-- quently firmly secures the locking-collar 26 to the mandrel. This also forces the movable head 20 toward the stationary head 17 so as to tightly bind the tube 16 between the two heads. The movable head is -.thus tightly clamped between the locking-collar 26 and the stationary head 17 so that allt-he partsare locked together'and to the mandrel.

t will be seen that the longitudinal movementof the movable head is automatically alread accomplished by the unwinding of the paper, and so far as I am aware this'is broadly new. i For some purposes it is desirable that the locking-collar and movable head be connectedtogether, particularly for convenience in handling, an shown such an arrangement. struction shown in'said figures the tube 16 and mandrel 13 are the' same as in the construction already described, and so also are the other parts, which areindicated by'corresponding numerals with the exponent .aT except that the locking-collar 26 is rovided in Figs. 7 to 11 I have In the conv with a sleeve extension 31 u on w ich the movable head, 20 is fitted an 'to which it is connected by a pin 32 which is carried bythe' sleeve 21 and entersfa spiral'slot 33 int-he sleeve 31. .The plitchof the slot"33 is such tightly clam the'tube andlockiit-to: the

mandrel. T e clamping --device .-may.' be

of flerentdiameters.

' In Fi 12 I have showna' movableheadin which t e tapered sleeve iscorrugated, as

over against the tube "16::The I ada ted to rolls of different lengths and tubes I shown at 34, to adapt it to engage a'nd grip I a aper tube or core. 1

y invention 1' not restricted the specific details of the construction described, except in so far as they are particularly claimed,

but includes generically the subject-matter of the broader claims.

That which I claim as my invention, and

desire-to secure by Letters Patent, is,+

1. A clamping '-.device for roll-holders, comprising a longitudinally-movable head adapted to. be mounted on a shaft, a clamp adjacent to said head and having means adapted to engage said shaft, and means operated by the rotation of the roll for auto.- matically actuating said clamping means.

.2. A clamping,- device. for roll holders,

comprising a longitudinally movable head adapted to be mountedon a shaft, a clamp adjacent. to said head'and having means ada tedto be actuated to engage said shaft, sai head being capable-of limltedrotation relatively'to said clamp, and means operated by the rotation of the roll for automatically actuating said clam to engage the shaft.

3. A clampingevice for roll .--holders,

adapted to be mounted on a shaft, a clamp adjacent to said head and having means adapted to be actuated to engage said shaft,

comprising a longitudinally movable head roll for automatical y and means" operated bfy the rotation of the orcing said head and clamp apart.

v 4. A clamping device'for roll holders, comprising adapted to be mounted on a shaft, a clamp adjacent to. said head and havingmeans adapted to be actuated to engage said shaft, and means operated by the rotation. of the roll for automatically actuating said locking means and forcing said clamp and head .5. A clamping device for roll holders,

comprising a longitudinally movable head comprising a longitudinally e movable-head said head b means and forclng said clamp adjacent to said head and adapted adapted to be mounted adapted tobe mounted on-a shaft, a clamp having means adapted to be actuated to engage said shaft, eing ca" able of limited rotation relatively to said 0 amp, means operated by the rotation of the roll for automatically actuating said clamp to engage the shaft, and means connecting said clamp and head together. I 7. A "clamping device for roll holders, comprising a longitudinally movable head to be mounted on a shaft, a clamp adjacent to said head and having means adapted to be actuated to engage said shaft, means operated; by the rotation of the roll for automatically forcing said head and clamp apart, and means connecting said clamp and head together.

8: A clamping device for roll holders, comprising a longitudinally movable head on a shaft, a clamp adjacent to said head and having means adapted to be actuated to engage said shaft, means operated by the rotation of the roll for automatically actuating said lockingand head apart, and means connecting said. clamp and head together.

9. A clamping-device for roll-holders, comprising a head adapted to be mounted on ashaft, a clamp adjacent to said head and having means adapted to engage said shaft, and means connecting said clamp and head together and permitting them .to move apart to a limited extent. a

10. A comprising a hea adapted to be mounted on a shaft, a clamp adjacent to said head and havingmeans adaptedto engage said shaft and means connecting said clamp and head a longitudinally-movable head,

said shaft, and means clampin -device for roll-holders,

engage one end of a roll tube or core, the

outer face of said head being in the form of a cam, a collar adjacent lever carried by said collar, and means actuated by said lever for engaging the shaft to lock the collar thereto, said lever being adapted to engage said cam face of the head.

12. A clamping-device for rollholders, comprising a head adapted to be mounted on a shaft, said head havin means adapted to engage one end of a rod tube or core, the outer face of said head being in the form of a cam, a collar adjacent to said outer face, a leve'r carried by said collar, and means actuated by said lever for engaging the shaft to lock t 1e collar thereto, said lever being adapted to engage said cam face of the head, said-collar having a sleeve upon which said head is rotatably mountedand is movable longitudinally.

13. "A clamping device for roll holders comprising a head adapted to bemounted on a shaft, said head having means adapted to engage one endof a rolltube or core, the outer face of said head being in the form of a to said outer face, a

cam, a collar adjacent to said outer face, a 1

lever carried by said collar, means actuated by said lever for engaging the shaft to lock the collar thereto, said lever being adapted to engage said cam face of the head, said collar having a sleeve having a spiral slot, anda in connected to said head and moving in sai slot.

14. A clamping-device for roll-holders, comprising a by, one of said heads'being movable lon itudinally of said shaft, a .clamp having 100 ring means adapted to be actuated to engage said shaft; and means automatically operated by the rotation ofthe roll for operating said locking means to cause them to lock said clamp to said shaft. V

15. A clamping-device for roll-holders, comprising a shaft and heads carried thereby, one of said heads being movable longitudinally of said shaft, a clamp having locking means adapted to be actuated to engage automatically oper ated by therotation of the roll for operating said locking' means to cause them to lock said clam to said shaft and clamp and movable head a WILLI v Witnesses:

art.

EVEN SEN to force said shaft and heads carried there- 

